Type-writing machine.



I3 Sheets-Sheet j-IIE Patented may e, |902.

z. G. sHuLEs. TYPE WRITING MACHINE. (ppxcat on med Jan 11 1899) (NoModei.)

TTDFNEY l (No Madam Z. G. SHLES. TYPE WRTiNG MACHINE,

(Application led Jan. 11, 1899.) K

Patemd may 6, 1902.

I3 Sheets-*Sheet 2.

MWENTDR Patented May 6, |902.

Z. G. SHLES. TYPE WRITINGRiACHHJE- VNo. 699,250.

(Application filed Jan. 11, 1899.)

la sheetssheet 3,

(No Model.)

m M4 .4 3% W W M No. 699,256. Paewfed 'May 6, i902.

25a. SHQLES.

TYPE WRITING KbACHNE.

' (Application med Jan. 11, 1899.? (No vodei.)

WITNESSEa lmvmmre *Hrs ATTDRINE'Y No. 699,250. Patenten may 6, |902.

'Z. G. SHOLES.

TYPE WRITING MACHINE.

(Application filed Jan. 11, 1899.;

`(No Model.)

Patented May 6, |902. z. sHoLEs. TYPE WRITING MACHINE.

(Application filed Jem. 11, 1899.)

I HIS ATTURNY No. 699,250. Patented May 6, |902.

Z. G. SHULES. TYPE WRITING MACHINE.-

(Application led Jim. 11, 1899.;

I3 Sheets-Sheet 8- INVENTEII? 7M am.;

NEY- I NIX/@M3555 f( Maw/mw No. 699,250. Patented may 6, |902. z. G.sHoLEs. TYPE -WRITING? MACHINE.

(Application filed Jan. 11, 1899.)

I3 Sheets-Sheet 9.

(N0 Mdel.)

I'NVENTDR WITNEEEE 5 .-IIS TTDRNEY Patented May 6, |902.

E. N .H SFU EA LM uU" G N SII .T 6.8 Z.W E DI Vl T I3 SheetS-jSheef l0.

'no Model.;

xmw, y

- Ilm/ENTER a m n WU, l Q

A EN @Q .n

TUNEY HIS ofA No. 699,250. Pafeited may 5, F9622 Z. G. SH'LES.

TYPE. WRITHIM; MACHINE- (Application led Jan. 11 1899.)

Clio Model.)

WITNEESESF van. ssazso. Patented May 6, |902. z. s. sHoLEs. TYPEVWRITBNGMACHINE.

(Application filed Jan. 11, 1899.)

I3 sheets-sheet l2.

v NVENTUQ -f-hs THJRNEY (NQ Model.)

Fatemed May' 6, MS2

2. E. SLES.

TYPE WHTENG MACHINE.

(Application 1ed`J`Pm. 1l, 1899.)

va/YTNEEEEE:

ATi-CJ may - UNITED STATES zALMoN G. snoLns, on nvn'NsT n,-

ILLINOIS, ASSIGNOR4 TO TIE UNION TYPEWRTER COMPANY, OF JERSEY CITY,NEB/V JERSEY, A-OORPO- l RATION OF NEW JERSEY.

TYPE-WRITING MACHINE.'

SPECIFICATION formingpart of Letters Patent No. 699,250, dated May 6,1902.

Application iiled January ll, 1899. Serial No '701,801- (No model.) l

To @ZZ 10h-0711. it mayaotcern:

Be it known that I, ZALMON G. SHoLEs, residing atEvanstn,Oook county,Illinois, have invented certain new and useful Improvements inrlype-VVritingMachines,of which the following is hereby declared to be afull, clear, and exact description.

'The present invention has relation more particularly to that class oftype-writingmachines in which the paper to be printed upon issupportedupon a carriage to which a stepby-step advance is given through themedium of an escapement as the key-levers are successively operated.

The invention consists in various novel feal tures hereinafterdescribed, illustrated inthe accompanying drawings, and particularlydefined in the claims at the end of this specilication. I f

Figure l isa plan view'of a type-writing machine embodying myinvention.l Fig. 2 is a plan view with the carriage removed. Fig. 3 isan inverted plan view of the top plate of the machine and parts beneaththe same. Fig. 4 is a view in end elevation from the righthand end ofthe machine. Fig. 5 is a vieu in central Vertical cross-section. Fig. Gis a view in vertical cross-section at a point adjacent the upper-caseshifting key-lever. Fig. 7 isI a detail inverted plan view of thecarriage and the U-fraine connected therewith. Fig. S is a detail View,in front elevation,'ct` the lock and release mechanism for theplatenshifting frame. Fig.. 9 is a view in central vertical sectionthrough Fig. 8. Fig. l0 is a .View similar to Fig. 9, but showing theparts in released and shifted position. Fig. 11 is'aviewinverticalsection online l1 11 oi'Eig. 9. Fig. 12 is a View in centralvertical section through the end bars ofthe carriage and adjacent parts,certain parts above the carriage being shown in elevation. Fig. 13 is adetail plan View of one ond of the carriage. Figli is'a view in`vertical section through one end of tbe carriage, this section beingtaken on the line ofl travel of the antifriclion-balls. Fig. 15 is adetail plan view of one of. the ends of the U-frame beneath thecarriage. Fig. 16 ipsa.

carriageand parts connected therewith. the

'section' being taken through the grooves4 .wherein theantifriction-balls travel.) Fig. 17 is a detail end view of thecarriage, the platen, and connected parts. Fig'. r1S. is a view similarto Fig. 17,but showing the praten 19 is a detail plan view of-one of theend bars of the platen-shifting iframe. Fig. 20 `isa View in verticalcross-section' through the end bar shown-in Fig. 19 withone of theplatensu pporting pillars mounted thereon. is a detail View','in sideelevation, of' one of the pillar-blocks at the end of the platen. Fig'.22 is 'a view in vertical longitudinalsection through the pillar-blocksshow-nin Figs. 2O and 21.' Fig. 23 is a plan view of thevpillar-blocksshown in Fig. 21. Fig. 24de a detail view, inside elevation, of oneof'the links whereby the platen-frame is supported. Fig. 25 is a detailinverted planvew of the platen and its tilting frame with "parte carriedtherefront presser-rolls and spring-n'gergthe front cross-section.Fig..27 is a View in central verfront presser-rolls. Fig. 28 is a Viewin vertical section through the support of one of the frontpresser-rolls andV through the rod Wher'eon it is mounted. Fig. 29 is adetail view, in front elevation, of thesupport whereby one of the frontpresser-rolls is carried. Fig. 3 0 is a detail end View of theplaten andline-spacing mechanism connectedtherewith, the journal of the platenbeing shown in crosssection. line-spacing mechanism from the sideopposite that shown in Fig. 30. Fig. 32 isa plan view of the partsshownin F' 30, parts being broken away. Fig. '33 is an end View of theshield or housing adjacent the rigluit-handy end of the platen.FigfSfl-s 'a Viewiinvertical section lthrough the shield or housingchown in Fig. 33, the. section being` taken adjac'ent the end wall ofthe shield and looking toward the end of the platen.

l l Fig.,36 is afview .in einen longitudinal section bar of the tiltingplaten-frame being'shown in tical'section through a support of one ofthe' Fig. 3l is a View showing part ofthe upturned to expose the line ofprint. Fig.

by. Fig. 26 is a detail end'viewof one of the Y u A Fig.,35 is a" viewin vertical section through the' line-space 7 p regulator shown in Fig.30 looking in the diview 1n cross-section through one end of the"vrect'ion of the arrowsl there shown.;

Img:

to receive, respectively, the pinsli-end ijie adjusting-screws 14, thepins aiding to lool?.

ystl-eddie the nptnrned ends of the 'bers 4t, and

through the upper portion of the machine in front of the esoepementmeohzmis i". 37 is e detail View, in side elevation, ot one of thecross-'bars whereby the supporting-teils for the carriage me connectedtogether, the ends of these rails being shown. etteohed to thecross-bar. Fig. 38 is e View' in cross-sec tion through the top plate ofthe machine, showing the means for connecting bars of thecarriage-supporting Fig. 39 is a; rear end View of one ot me tringe-supporting bers shown in Fig. .37 wi a, part of the rearoarriagefsnpporting mil thereon'. Fig. 40 is a detail View, inliorizontal section, through the adjusting screw pin shown in Fig. 39.Fig. il is s deteniiview showing the means for siinniteneonsly miensin'g and tilting the pieten. :is e i. viewgn vertical longitndinaisection, througil the escapement mechanism, this View being taken uponthe meeting line of the sintenteeth. Fig. 43 is sdeta-il View snowingthe carriage rck-bazgtiie Wheel or pinion in georing therewith, and thespring connected to sni'binion for advancing the carriage. 44:.is` =a,deiia View, in side elevation, of e escapemeiit-doge and their support.Fig. 45 is a. View in lhorizontzil section through. the slipport for theescapement-dogs, the losse of said support endocnnected partsbeingsiiown in plan. liig.v Ithis a perspective View ct' on, improvedpapengnide.

The main frame of the machine may be of the usual or any suitableconstruction, 'the top plateA beingniodiied to support certain perts 'ofmy .improved mechanism. Upon the top plate A f the mein frame nrc mount`ed the front and rear rails 2 ond 3, that sustei-n'the platen-supportinggitrriege, and the rails 2 and 3 are connected together by the end bers4, that set Within slot-s a. of the mein frame :ind rest upon the lugs 5and t3, toet depend from the `under side of the top piste. (See Figs. 2,3, 5, end Figs. 37 to in enfin. of the crossbers fl. is forme/. adaptedto receive en nini or 9 "e fi, niiet projects from the barrel of ethumb-nut t?, that is held nponascx'ew lo, passing tiirongii the topplate A,adjncent the cross-biti- ,t'nese thumi. nuts 9 thus serving toseoureiy retain the 'locking-bm' in position upon' the top plete. Thefront ca-rriegesupporting .rail is pon manently fixed to the front endsot the crt..J bers et'by ineens ot' pins 1l, (seo Fig. ig) ont .the iearcarriage-supporting mil 23 is adjust ably connected to the rear ends ofthe cross-` bars 4, as clearly shown in Figs. 39 :intl di@ of thedrawings. By reference to Figs. 37, 39, and 40 it will be seen that eachof the mils 2 and 3.is formed with depending lngsiQ, that the rear endsof these bars are formed with scmicircnler seats, White correspondinseats' are formed in the depending lugs l2 of me rear rail 3. Thesesemicironier seats sem/o esenti iforwsfrii the y position the seine tothe snperposed resi mi?. of

. 'foregoing description reieasing t ing-nets 9 i and estrie portingreiis De removed n never it 'is ileed to e'niiioy ceri or pistonsiferent lengths. It wii be seen thet the ojecting part 8 upon en. not 9forms a titten or Keten, which is adopted to n sent or to reisssaloly Pb bearing '.7 in the crossbsr, so

loci: tile freine n chine, and. t piece 9 nnti.

6 to form seats for the carriage-rmi freine too and that the letter isheid upon these by the seid latches, or3 in otiier words, the latchesesonerato with both the siois md the logsI to hold the frame inposition.

The carriage-supporting reiis 2 and 3 have 105 their nppenfeees groovedto reeeivethe entifriction-bells 1.6, the shifting of the balls from thegrooves being prevented by the stoppins 1'?. (See Fig. 2.) The carriage.li is shown nseonsistingoi" ereotztngnier freine, (ses Fig. r1

7,) tiie frost enti nooit oars of' which extend other the mils i' :enti3, res ,t-iifeiy., :md tile flower feces ot ese eers are grooved 'toform ciiennels 'for the heli i6, enti their ends ere provided withstop-pins .ji to prevent the es n ezine of the Delis. Upon the tops ofthe front and rear mils 2 3 are fixed tile plates 2O sind 2i (ses Fig.(3,) that overlap the front and be. ecafrieffebeis, rospectivoiy; andserve to gnmai. tiie' ';.=tri" teagainsttiisg'iizteeznent. To iz the.srriege nre iixed arms i., (sce 1 .fi-nd 4,) that carry the margin"ftopfir t from. ttlnioli depends the reciober @Qtnzit engages thegear-wheel D. (See Figs.

and 36.) Y;i?iei`einbly this w siiztpednd itsiong hoi) (Z is ed upon. nsiiziit 24, that is the beck Der of ievolnbly inoimtjonrneled in thefront and. bers of n freine 25, bolted to snd wonen 'om the top piste oftile mein onen, one end. of zi. convolnte carriagetw EL 11 2(3,timtencircles the shaft, csi."

ons ot this spring being iixed to sting from .the Wheel; D, this heel Dis cup-f x25 Pigs. 3, 5,1m@ 36,), To the shaft 13o "bolt 27 andV asimilar bolt 28 serving to unite to the wheel a skeleton cap D', thatforms its frontface. Upon the hub d of the gear-wheel D is mounted abearing-sleeve 30, the hanged f 3l pass through holes formed in the hubot` the clutch-wheel G, that is free to slide upon rear end of which isattached by the bolts 31 to the escapement ratchet-wheel F. The boltsthe bolts. The front face of the clutch-wheel G is formed or providedwith shallow beveled teeth g, annularly arranged and adapted to engagewith a similar toothed ring di on the rear face 'of the Wheel D, and acoiled spring 33, that encircles the hub of the clutch-wheel G, servesto normally hold the toothed rings g and cl2 in engagement.

The periphery of the clutch-wheel G is formed with an annular groove g',into which project vthe arms h of the clutch-shifter H, (see Figs. 3 and42,) that -hand end of the carriage.

is pivotally hung by arms h- 't' rom the lugs 36, that depend from thetop plate of the frame 25.- The clutch-shifter His preferably bowed,asshown in Fig. 42, in order that its arms h may better engage the wheelG, and to the opposite ends Vof this shifter are attached the' slidingrods 37,that pass through and are supev ported by lugs 38 upon the underside of, the top plate, (see Fig. 3,) the upturned'ends of these rods 37passing throughlongslots formed in the top plate A of the machine andbeing attached to the transverse rod 39, (see Fig. 5,)

that extends across the top plate and below the carriage.

Beneath tho carriage B, and from` end to e d thereof extends ashifting-rod 40, that is connected at one end to a swinging arm 41,

(see'Fig. 4,) that dependsfrqm the end ofthe carriage B and at itsopposite end is connected to a release-lever 42, (see Figs. 1 and 17,)that is pivotally connected to the opposite or left- The upper end ofthe lever 4'2 is bentforwardly andtoward the right, being provided witha finger-piece f in order to be conveniently manipulated by holes 4S,arranged at suit-able distances around an annular bar 49, that is fixedto the back part of the Vframe 25.- (See Fig. 5.) ',By retracting thehandle 4G the pin 47 may be released from engagementwith the ring 49,and

by turning the handle the desired tension can be given to the -convelutespring 2 WVith the ratchet-wheel F engage the escapelfment-dogs K andK', that are carried by the vibratory frame 50," (see Figs. 5, 42, and45,) the arms 5l of this frame being pivot-ally connected by thejournals 52 to a bracket 53, that is `fastened to the base of themachine. Uponone ofthe arms' 51 of the vibratory .frame 50 is mounted acoil-spring 54, one end of .which is fixed to a collar 55 upon the armL51, while the opposite end of the spring engages the bracket 53.4 From'the front edge -Aof the bracket 53 rises ay bar 56, from which ythevibratory frame 50 and being provided with set-nuts 58 and 59 inorder that the ex@ tent of Vibration of the, frame may be accuratelyregulated.. To the base of the vibraltory frame 50 is connected a bar60, leading to the sides ot' the machine, at which points it will beunited by suitable rods 61 with the universal bar G2, that extendsbeneath the key-levers ot the machine. (See Fig. 6.) The top of thevibratory frame 50 is provided with an overhanging portion,(see Fig.44,) and this portion is providedwith a squared vertical recess orgroove, through which passes the squared lower end of the rigid dog K,a'screw its 65 being employed to rigidly connect the dog 4 with theframe. The dog K is provided with horizontally-extending arms or wings7c on three ,sides thereof,l and these wings are beveled at oppositesides of the dog, while the third sidegis provided with anupwardly-extending arm or lng '66, through which passes vthe pivot-bolt67, that carries the limber dog K'. The d og K' is provided at its basewith lugsGS and 69, that carry set-screws and 71, by which the extent ofmovement of the dog K' can be accurately determined. A spring 72, risingfrom the wings 7', engages a pin 73, projecting from the side of the dogK', and serves to retract the dog to normal position.

Frein the foregoing description it will be understood that when eitherthe hey-levers or spacing-levers of theinachine are operated, therebyeffecting a depression ofthe i'lniversal barli2, the vibratory frame 50will be rocked, `causing the dogs K and K' to swing across the teeth ofthe ratchet-wheel l". The convolute spring 2U, acting upon the shaft 24and through the medium oi' this shaft upon the ratchetewheel l", tendsto turn said wheel ,in the direction. ot the arrow, Fig. 42, in order toadvance the carriage, and when atrest the `teeth of the lwheel F engagethe limber d 'o'g'K' and 4hold it against -thc force of the IOO IIC

spring 72 in vertical line with the rigid dog MK? When, however, theframe 50 is rocked' bythe depression of the key-lever, the limber dog Kwill be thrown out of engagement with the ratchet-wheel F, and the rigiddog K will be thrown into engagement therewith. As the limber dog lil'escapes -.trom the ratchetwheel the spring 72 shifts this dog out ofalinement with the rigid dog K, so that as the keylever is released thelimber dog will enter the interdental space of the ratchet-whee1 nextthat from which it had just escaped; but as the ratchet-wheel is caughtby the limber dog the convolute spring 26 will force the limber dogagain into normal position inline with the rigid dog, thus permitting amovement of the gear-wheclD, and consequently oi the carriage, for thespace necessary to permit the printing of successive type, as wilt bereadily understood -bythose familiar with machines of this generalcharacter.

When it is desired to retract the paper-carriage at the ot" a iine, theoperator can move ihe'eari ne freely toward the right, becanse 'the gol? the clutch-Wheel G; and the d? of the gear-wheel if) are so inelinedthe carriage is 'moved toward the the teeth di will ride over the teethg, merely moving the clutch-wheel G rearward against the force of thecoil-spring 'When itis desired to nieve vthe carriage freely eithertoward the ris-ht or lett, the operator can depress the finger-piece 43of the releaselever 4t2, (see Figs. il, 3, and 5,) thereby causing therod 4:0 to engage the bar 8S and through the medium of the sliding rods37 to cause the clutch-shifter H to swing rearwardlyuntiltiielclutch-Wheel G is so far retracted. that teeth J' shall be free'from engagement with the teeth d2 of the gear-wheel l.

'Die margin stop-bar 'C i) is provided with a long slot o2 to permit thepassage therethrough of the thumb-screws 75 The outer end and 76,whereby the margin-stops Iii and M' are adjustably held upon the bar C.Thelefthand margin-stop hi. is preferably formed of the shape shown inFigs. l and 5-that is to say., with an arm resting upon the numberedscale on the surface ot the bar C and with the downwardly-bent arm m,adapted to contact with the center stop 77, that limite the movement oi'the carriage as it is drawn to- Ward the right. A nut ym engages thethreaded lower end of the screw 7 G beneath thabar C and serves tosecurely retain the marginstep M in position. The right-hand marginstopM is shown as lformed of a plate having at one end an upturned iiangem2, that bears against the edge of the plate C, and an upturned lug m3,that extends Within the slot c2, (see Fig. 1,) the iiange and lugserving to aid in holding the margin-stop in position. of themargin-stop M is formed with a threaded hole to receive the threaded endof the thumb-screw 75, whereby the margin-stop fixed in any desiredposition. The inner end of the margin-stop lvl/ thereto a pawl 78,adapted to contact with a pivote/d arm '79, carried by the main frame,this arm 79 being attached to the upwardlybent end of the hell-cranklever 80, thelower end of which lever carries the striker 8l, adapted tocontaciiwith the bell 82, and'thus signal the operator that thecarriageI is approaching the end of its movement. (See 1 depending angeof ditional letters to be printed.

. I Beneath the carriage B extends a U-shaped has pivoted' eee-esoengagement with the arm 79, when the striker 8l will descend and strikethe bell 82. It will be seen that the pawl -78 is usual shoulder thatrestricts its movement as the carriage travels to the left, but permitsthe pawl to swing upward and freely over the arm 7 as the carriage isretracted 4to the starting-point. .1-

In line with the' arm 79 and in the path.of the margin-stop pawl 78 islocated a stop-arm 85,f(see Figs. 3 and 36,) that extends upward througha slot 86 in the top plate, the lower provided with the 7o end of thisarm 85 being fixed to a stop-shifter 8o rod'87, that is mounted beneaththe top plate of the main frame, one end of this rod being mounted inmanner free to slide in a suitable hanger-lug 88, 'while the oppositeend of the rod passes through an opening formed in the 85 the top plateA at l the front of the machine, the rod being there provided with afinger-piece 89, whereby the rod can be oonvenientlvshifted. Therod 87is forced outward to the normal position (seen 9e in Fig. 3 of thedrawings) by means of a coilspring 9 0, that encircles the :inner endofthe rod, one end of this spring bearing against the lower end of thestop-arm 85, while the opposite end of the spring bears against the 95depending lug 88. y

From the foregoing description it Will be seen that the operator byshifting the margin-stops M and M' may eterminethe extent of traf'el ofthe carriage in either direcloo tion, so as to give the desired extentof mar-K` gin to the printed page at eithersidethereof. Y inasmuch asthe stop-arm 85 has its'upper end projecting into the path of the pawl78 on the margin-stop M', the. pawl 78 contacts with the arm '85 themovement of the carriage will be arrested. It' it is then desired.` toprint an additional letter or letters beyond the predetermined lineofprint, the operator y button' 89, (see Fig. 2,) thereby causing thestop-arm 85 to pass out of the path Lof travel of the pawl 78, so thatthe carriage will be free to move toward the left to permit the adframeN, (see Fig. 7,) the end'bars of this U- frame being formed with theslots n to receive the stop-blocks n', vthat are attached to the underside of the'end bars of the carriage 12o by means o t the set-screws n?.The 'stopblocks 'n' are provided with long slots, as shown, in order topermit pf a slight adjustment of the blocks for the purpose ofdetermining with exactness thegthrow of the itis obvious that when :of

will press inward the' ric U` r2' Figs. 2, 3, 5, and The bell-cranklever 8O a Vis1'c uirifiled to a bracket 83, depending from the underside of the top plate of the main Y. frame, as clearlyeeen in Fig. 3. Itwiii thus be seen that when the pawl 78 lduring the forward movement otthe carriage strikes the upper endetV the arm 79 it will roch thebell-crank lever/80, causing the striker 8lto riseuntil the pawl 78passes over and from frame N, the movement ofi/,the frame being limitedby the position-of the stop-blocks within the slots n. From the under'side of the end bars of the frame N project pins 92,

to which are connected the innerends ofthe 13o Ycoil-springs .93, theopposite ends of thesek springs being connected toI pins 94, depend-,fing from the under iside of the carriage B. (See Fig. G.) The springs93 ser-ve to norl @esteso mally hold the U-frame Naud the parte cfflpnnected therewith in the position shown. in the drawings. By referencemore particularly to Figs. 12 and 13 of the drawings it will be seenthat the end bars of the carriage B are formed with the long slots 95,through which project lugs @depending from the under side of the slidingbars O, these sliding bars being conveniently attached to the end barsof the frame N by means of the screws 9G. The frame N and the-slidingbars O constitute the supplemental carriage whereby the platen issustained in manner permitting it to move at right angles to the line oftravel of the main carriage B, the purpose Aot such movement being toenable the shift of the platen necessary topermit either of several-type carried upon a single type-bar to strike the printingpoint of theplaten. By reference to Figs. 13 to 16 it will be seen that in the upperand lower faces of theend bars of the carriage B are formed grooves orchannels to receive the antifriction-balls 97, and similar channels areformed at coincident `points in the under face vof the end bars O and inthe upper face of the end bars of the frame N. The supplementalcarriage, that consists of the frame N and sliding bars O, will thus besustained so as to move with the least possible friction uponthe inaincarriage B. The front ends ofthe sliding bars O are connected togetherby means of a scale-plate P, the ends of this plate havinginwardly-turned portions @that rest upon and are ixed to the ends of thebars O, while the body of the scale-plate P extends at an angle of aboutforty-tive degrees from the vertical in order to bel more readilyobservable by the operator. Acenter pointer P', that is fixed to thefront carriage-supporting rail 2, (see Figs. 1 anden) extends over thescale-plate P, and thus enables the operator to observe atall times theexact Aposition of the carriage, the point p8 of the center pointereljrresponding exactly with the printing-point o'f the type.' The centerpoint-er l" is also preferably provided with a supplemental pointer P2,that extendsinward, so as to be in proximity to the printing-point whenthe platen is turned upward to expose the line of print, as willhereinafter more fully appear.

By reference to Figs. 1, 12, 14, 17-23 of the drawings it will be seenthat the upper faces ofthe slidingbars O serve' to support theplaten-frame posts R, the preferred construction of which posts is thatshown inthe drawings. These posts R serve to sustain the platen and itstilting frame, and the posts are removably connected to the sliding barsO of the supplemental carriage, so that the operator can readily removeone platen and its tilting frame Whenever itis desired toY substitutea.-ther therefor. `The upper face of each of the sliding bars O is formedwith the dovetailed studs 100 and the vertical studs 101, with the slot102, and with the dovetailed The`lip 103 is adapted to engage thecorresponding dovetailed front edge r of the base R' of the post R, andthe lip 103 and edge 7 are preferably'curved, as seen in Figs. 19

and 23, in order toguard against the lateral movement of the base R'upon' the sliding bar O. The base'R' is formed with au offset fr",adapted to enter the seat 102 of the bar O, while that part of the baseR immediately beneath the post-R is formed with the dovetailed portionr2, (see Fig..20,) adapted to engage the corresponding studs 100 on theend bars O. The base of the post R has a flange r3, that .will rest uponthe studs 10() a'ndvlOl. In placing each post R and its base R in po-`sitionupon the corresponding e'nd bar O the post R will be rst setslightly to the rear of the studs 100, so as to permit the dovetailedpart r2 of' the base to engage the dovetailed studs 100 as the baseisslipped forward. By

moving the base R" forward the dovetailed part r2 will interlock withthe studs 100 and the end yr of the base will engage with the dovetailedlip 103, while the offset 'r' of the base will enter the groove or seat102. The post-,R is hollow (see Fig. 22) and is provided with aV plungerR2, forced normally downward by a spring r" within the post, and in theysides of the post R at its base are formed slots, through which projectthe locking-arms T5 ot' tho plunger R2. The plunger is furnished With ahandle or offset r, whereby it may be lifted against thc force ofthespring 1*". Vthen the post R and base R are lset in position, as abovedescribed, the plunger' R2 will be lifted until the arms f5 are oppositethe spaces between the studs 100 and 101, and the plunger R2 will thenbe permitted to descend, so as to permit the arms 15 to enter thesespaces, and thus securely retain the post R and the base R in position..Said arms r hence operate as latches or locks for holding the posts orbrackets `upon. the end bars O of the carriage.

IOO

IIO

To the top of each of the posts R at the opwith the corresponding endbar 122 ot' the plat' n tilting frame. .This platen tilting frai Aeconsists of the end bars 122, the front and rearends of which areconnected together by'the front and rear rods 123 and 124, (seel1`igs..1 and 5,) and through the end bars of this frame and as well,also,` through the platen S passes the platen-journal S, the ends ofwhich project beyond the carriage and are furnished with the usualhand-wheels s, whereby theplaten cau be conveniently turned. Upon theplaten-shaft S' at each end of the platen is pivoted a link 125, thelower e'nd of' which is pivotally connected at 126 to the correspondingbase block or plate R', and each of tho base-blocks R' is formed with aseat rs, whereinA the platenshaft will rest when in working position, asshown in Fig. 17 of the drawings. The purpose 'of mounting the plnten-reine upon pivot-links end 125 is tov permit the freine to he readilyturned onward end the pinten io he swung forward reward the indicatorpointer P@ when the line of printis to he exnosed to the opcretors View,and hy relerence to Figs. 1.7 and 1S the position of iho parts when thepieten is in the working sind uptnrned positions, respectively, will herendily understood. in order to retain the pinten in the nptnrnedposition, (shown in Fig. 18,) one of the links 120 mny'he provided withseatsOrindentniions127, (see Fig. 241,.) adnped to receive illebevel-ended pin 129, pass ing loosel)7 through the hole in tie post R(see Fig. 2i) enti pre. sed in one direction. hy

lthe free end of e plaie-spring 128, (see 18,) that is fastened to theupper part of the post R. Vhen the pleten is turned upward, es shown inFig. iii, the of the pin 129 will snep into one ci' the holes 127 andwill retain the platen in nptnrned position; 'mit when the platen is tohe turned downward by the hand of the operator the pressure of link 120will force pin 129 and spring 128 ontward, so es to .release ihe pinfrom the sont 127. Upon. the front end of erich ci the end hers 122 ofthe pinten-freine n. .footpiece 130,'nciepted lo rest upon the upperfece of the corresponding sii g her O. .From the front end oi* eachsliding her G e, stud o4, .(see Figs. 5 and 19,) and in 'those sindsnrejonrneled theeniisoi" rod 132. Fig. 1.) Upon this rod adjacent eechits ends, is mounted e hitch 1323, (see Fig.ei1l,)the hub of whichprovided with e, shoulder or offset 134i. Upon the front 'rod 123 of theplcteirfmme is fined en erin 13G, from which projects laterally e pin131, 'whoreon is pir otedA n. ihrowei lever 128, the front enf?. ofwhich projecis nero-:ici 'f' forward into convenient reech o arntor. Theern; 13G is afleetcd to engine ,e hooked nnoer end L .w i E* of thelatch 133, end the lever is iorin d 'with n shoulder 1529, :id oted 'toengege shoulder et ti. o the latch l Theinner encor th 2 lever 133 isforo en erin 1&0, thnt permits e slight inimei plv omi increment lei/'er13S when pieten is to errl.

of this initiel 138 'is tiret ille shoulder engegement permit the lotnrnedin .euch nr of print to ilic- 1.

the operz'ltor. construction oi' loer ng mechanism for pinten-freinehold 'the freine n n-einst eccidentel lifting :nov/ement when invz/'erliing position, hut enehlee the operator h n, single iipwerdmovement oi the henri to rclease the pieten-freine and. throwT the"pieten to the nptnrned position. (Seen :in Fig. 18.)

Upon their-ont her of the pieten-freine lisce Figs. 1 end 25 to eremounted the slid ing blocks 140, that Gerry the front presser lig eeeeso relis lei, end preferably, also, the guide-,nngers 142. The frontrod 123 is shown as Fori-ned with e slot extending throughont'its lengthand adopted to receive e shoe 143, the stem o?. which shoe sets within nchamber in ,the block 140 andis'enoircled -by coiled rspring 144, thatserves to normally force the shoe M3 into 'engagement With the rod 123.

The purpose of the shoe 143 is topreventthe turning of the blocks 140about the rodnnd also 'zo frictioneliy hold the biooksagainst lateral.displacement, While permitting them to he slipped freelyin eitherdirection undery platen, thus insuring clear type impressions and elsecontriouting to the accurate feed of the peper around ille pieten.` Eachof the plates 145 is connected to the'npper part ot' the correspondingblock 140, es by screwle'?,

es to 'permit the lower part of the springplate' 1115 to he movedforwardly in order to relieve the pressure of the roll lif against thepieten, and in order to permit each presserroll 141 to he thus shiftedthere is e4 smell cem-shaft 150, jonrneledin the slotted lower end et'@ech block 1110, each cern-shell: being formed Withehendle15l,thetextends through e slot the plete 145, and the cam-shaft is formed withings 152, adapted to heer against the under side of the spring-plete145, ns shown in Figs. fnnd 29 of the drawings. it will thns he seenthat when the pressure of the rolls ,141 'is to he relieved the operatorwill shift the handles 151 from the position seen in full lines to the`position 'shown hy lines on 7, thereby cansing the 'oi' the shafts 150to engage end move l lor-:er ende of spring-platee 145. ier-stood, et'course, that the ere formed with. slots, l1 the presser-rolls 141 willposs A rfeee oA the pieten. 1t will seen that the operator een reedil;

lil

Y 1. tous shift the front presserrolisl-i1 to eey posi. f

tion. elong the pieten in keeping nithj'the width the sheets to neprinted upon.Y

Upon the hec-,li rod 1% oi the platen-frame loosely mounted the longsleeve 160,10

which ere iixed the hubs of the arms 161, (see Figs. 5 end 25,),to thelower endsoi which" f .Ip order to spectively, to the end bars oftheplaten-frame and to the arms 161, the springs serving toV normally forcethe rolls 163 toward the platen S. Centrally of the sleeve 160 ismounted an arm 161, and to this arm is connected a springplate 168, (seeFig. 5,) the tree end ot which is brought upward around the hub of thearm 161 and downward toward the platen S to bear against 'the back sideof the paper-table T, which table is thus .forced into like hearing.against the platen S. 'lhe paper-tahleT is provided with the usualreari'ardlyextending ears 169, whereby it is pivotally mounted on thesleeve 160 ot the platen-traine, and to the lower edge oi the table 'l'is attached a scale-plate t Yfor the guidance ot the operator when theplaten is tui-ned upward to expose the line of print. The table T servesto'direct the sheets ot paper around the platen, and as the sheets passbeyond the lower edge of the table they are received by the rear endsofthe guide-fingers 142. 1t will be nnderstood, of course, that the table'1 is formed with the usual vcut-away spaces to permit the bearing otthe rolls 163 against the platen.

enable the operator 'to relieve the pressure of the rolls 1623 and thetable T' when the paper is to be shifted or for similar purposes, thetwo end arms 161 (see Figsr 1, 5, and 17) are each formed with an upwardextension 170, which are in or nearly in con tact with table 'l`, and toone of these upward extensions is rigidly connected (or is formed inpiece therewith) the inner otset end ota lever 171, that extends forwardt-o be convenientlyv reached hy the operator, and by depressing theforward end ot the lever 171 the table T, the shaft 162, and the hackpresserrolls carried thereby can be moved away f rom the platen. nThelever 171 is provided with a stop-rod 172, adapted to contact with theadjacent end bar 122 of the supplemental carriage in order to limit thedownward movement of the lever 171.

In order to effect the shifting of the platen at right angles to theline ot travel ot' the main carriage for theV purpose ot bringing eitherof several type upon. a single typebar to the proper printing-point, themechanism' next to be described is employed. To the rear bar of thecarriage B (see Figs. 5 and 6 to 11) is pivotally mounted, as at 180,the latch-plate 181, the lower edge of whichis provided with alug 182,adapted to enter a corresponding hole formed in the rear bar ot theErame N, and when the frame N is in the position for the printing oflower-case letters 'it will be locked tothe carriage B by the latch 181.The rear bar of the frame N is formed with lugs n4, between which ispivotally hung a release-arm a5, the shoulder a of which serves to limitthe downward movement ot the arm, while the uptnrned end n of the' armis adapted to contact with the lug ,182 ofthe latch-plate 181 anddisengage the latchplate from the frame N. The under side of therelease-arm n is curved or inclined, as

shown, and beneath this arm extends a releasing-rod 184, the ends ofwhich are connected to rock-arms 185, mounted upon journals 186, (sceFig. 6,) extending from the lugs 6, that depend from the top plato ofthe main frame. (See Fig. 3.) The hub of one ofthe arms .185 is formedwith an arm 187, to which is con# nected the upper end of a rod 188,that leads to the upper-case key-lever 189. Above the latcliplate 181extends a bent arm or stop bs, (see Figs. 1 and 8,) that serves to limitthe upward movement of the latch 181.-v By reference more particularlyto Figs. 5' to 11 of the drawings it will be seen that when it isdesired to shittthe supplemental platen-frame and the platen S from thelower-case to the upper case printing position the operator will depressthe finger-key 190 of the uppercase lever 189, thereby causing the rod184- to engage the under side of the release-arm a5 and shift this armfrom the position seen in Fig. 9 to the position shown in Fig. 10 of thedrawings. As the arm h5 is thus shifted it will lift the latch 181 fromengagement with the frame N during the initial downward movementofthc'keydever 189, and as the key-le- -ver is further depressed theshitting rod 184.

will lconta f';t"with the rollers a9, that depend from the under side olthe frame N, and will thus shift backward this frame and with it theplaten that is supported therefrom. As

soon as pressure on the tinger-key190 is relieved the key-lever 189 willassume its no1- mal position, the shift-rod 184: being drawn normallyforward by the coil-spring 191,' that extends beneath the top plate ofthe main IOO frame and connects one of the rocking arms 185 with the lug38, that dependsfrom the top plate. V(See Figs. 3 and 6.)

As it is sometimes platen in the upper-case case lock mechanism next tobe 'described' is provided. Upon the upper-case key-,lever189 200, anangular is pivotally mounted, as at latch-plate 201,-the lower front armof which is formed with a slot, throughwhich passes a pivot-pin 202,that projects from the front end i ot' a supplemental key-lever 203,that is pivoted, as at 204i, to the upper-case key-lever 189. The upperarm of the latch-plate 201 is formed with a notch 205,.adapted to engagewith an adjacent part 206 of the main frame when the latch-plate isshifted to the position shown by dotted lines in Fig. 6 of the drawings.the pivotal movement of )Vlien the operator desires to print withuppercase letters to any considerable extent, the linger-piece 209 ofthe supplemental keylever 203'will vbe depressed and swung forward,thereby causing the rear arm of the key-lever 203 to swing-upward, sothat as soon the latch-'plate 201.

as .the notched upperend 205 of the latch201 desirable to retain thevposition, the upper--y Suitable stop-pins 207 and 208r limitv the isbelow the part 206 of the main framethe i notched end 205 will swinginto engagement with the art 206, and thus retain the uppercase l cy.over in depressed position. When,

